A Brief History of the Affordable Care Act
With Election Day just over a month away, here is a timeline of significant ACA moments.
The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
With Election Day just over a month away, here is a timeline of significant ACA moments.
Sen. Vance suggested moving higher-risk individuals to different insurance risk pools than healthier ones... What could such a policy mean for health coverage and costs?
Trump has long talked about making the ACA less expensive, but the question is less expensive for whom
What do new Census Bureau data say about the uninsured? The uninsured rate remained at a near historic low of 8.0 % in 2023, per the Current Population Survey.
In this column for The Wall Street Journal's Think Tank, Drew Altman explores a practical timetable for state action if the Supreme Court rules in favor of the plaintiffs in King V. Burwell and ponders what Republicans in Congress might do.
In this column for The Wall Street Journal’s Think Tank, Drew Altman explains that Tennessee Gov. Bill Haslam's decision on Medicaid expansion via the Affordable Care Act is the latest sign of pragmatism slowly winning over ideology in red states.
Launched in 2006, Medicare added a prescription drug benefit that relies entirely on private plans, while, for other benefits, beneficiaries have a choice between private health plans and traditional fee-for-service Medicare.
The Health Insurance Marketplace Calculator, updated with 2025 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA).
This webcast features a Kaiser Family Foundation briefing held on March 14, 2012, examining the policy and political implications of the pending U.S. Supreme Court case on the Affordable Care Act (ACA).
This analysis and interactive map illustrate how much more enrollees in Affordable Care Act (ACA) Marketplace plans would pay in premiums at the congressional district level if the enhanced subsidies were to expire in 2026 as under current law. The tool presents scenarios for an older couple who would lose subsidy eligibility due to their income level and for a single person with a $31,000 income. It also presents net average premium payment increases in each district in states that use Healthcare.gov.
© 2026 KFF